NAME

hypot, hypotf, hypotl - Euclidean distance function

SYNOPSIS

#include <math.h>

double hypot(double x, double y);

float hypotf(float x, float y);

long double hypotl(long double x, long double y);

Link with -lm.

Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

hypot(), hypotf(), hypotl(): _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE >= 500 || _ISOC99_SOURCE; or cc -std=c99

DESCRIPTION

The hypot() function returns sqrt(x*x+y*y). This is the length of the hypotenuse of a right-angle triangle with sides of length x and y, or the distance of the point (x,y) from the origin.

CONFORMING TO

SVr4, 4.3BSD, C99. The float and long double variants are C99 requirements.

SEE ALSO

cabs(3), sqrt(3)

COLOPHON

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